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Geri A, Massai L, Novinec M, Turel I, Messori L. Reactions of Medicinal Gold Compounds with Cathepsin B Explored through Electrospray Mass Spectrometry Measurements. Chempluschem 2024; 89:e202300321. [PMID: 37930642 DOI: 10.1002/cplu.202300321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/07/2023]
Abstract
Medicinal gold compounds, a novel class of potential anticancer drugs, are believed to produce their pharmacological effects mainly through direct gold binding to protein targets at the level of solvent exposed cysteine (or selenocysteine) residues. We have explored therein the reactions of a panel of seven representative gold compounds with the cysteine protease cathepsin B according to an established ESI MS approach. Detailed information on the mode of protein binding of these gold compounds is gained; notably, quite distinct patterns of cathepsin B metalation have emerged from these studies. It is shown that panel gold compounds interact preferentially, often exclusively, with the free cysteine located in the active site of the enzyme.
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Affiliation(s)
- Andrea Geri
- Department of Chemistry "Ugo Schiff", Università di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Lara Massai
- Department of Chemistry "Ugo Schiff", Università di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Marko Novinec
- Faculty of Chemistry and Chemical Technology, Department of Chemistry and Biochemistry, University of Ljubljana, Večna pot 113, 1000, Ljubljana, Slovenia
| | - Iztok Turel
- Faculty of Chemistry and Chemical Technology, Department of Chemistry and Biochemistry, University of Ljubljana, Večna pot 113, 1000, Ljubljana, Slovenia
| | - Luigi Messori
- Department of Chemistry "Ugo Schiff", Università di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
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2
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Selective Anticancer and Antimicrobial Metallodrugs Based on Gold(III) Dithiocarbamate Complexes. Biomedicines 2021; 9:biomedicines9121775. [PMID: 34944591 PMCID: PMC8698672 DOI: 10.3390/biomedicines9121775] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 11/16/2022] Open
Abstract
New dithiocarbamate cycloaurated complexes have been synthesized and their physicochemical and in vitro antitumor properties have been evaluated. All the performed studies highlighted good transport through the blood and biodistribution, according to the balance between the properties of hydrophilicity/lipophilicity and the binding of moderate strength to the BSA protein. Furthermore, none of the complexes exhibited reduction or decomposition reactions, presenting excellent physiological stability. The in vitro cytotoxic effect was evaluated on human colon cancer cell line Caco-2/TC7, and the complexes showed great antiproliferative activity and excellent selectivity, as much less effect was detected on normal Caco-2/TC7 cells. Most of the complexes exhibit antiproliferative activity that was better than or similar to auranofin, and at least nine times better than that of cisplatin. Its action mechanism is still under discussion since no evidence of cell cycle arrest was found, but an antioxidant role was shown for some of the selective complexes. All complexes were also tested as antimicrobial drugs, exhibiting good activity towards S. aureus and E. coli. bacteria and C. albicans and C. neoformans fungi.
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3
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Radisavljević S, Scheurer A, Bockfeld D, Ćoćić D, Puchta R, Senft L, Pešić M, Damljanović I, Petrović B. New mononuclear gold(III) complexes: Synthesis, characterization, kinetic, mechanistic, DNA/BSA/HSA binding, DFT and molecular docking studies. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115446] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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4
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Au 2phen and Auoxo6, Two Dinuclear Oxo-Bridged Gold(III) Compounds, Induce Apoptotic Signaling in Human Ovarian A2780 Cancer Cells. Biomedicines 2021; 9:biomedicines9080871. [PMID: 34440075 PMCID: PMC8389655 DOI: 10.3390/biomedicines9080871] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 01/01/2023] Open
Abstract
Au2phen ((2,9-dimethyl-1,10-phenanthroline)2Au2(µ-O)2)(PF6)2 and Auoxo6 ((6,6′-dimethyl-2,2′-bipyridine)2Au2(µ-O)2)(PF6)2 are two structurally related gold(III) complexes that were previously reported to display relevant and promising anticancer properties in vitro toward a large number of human cancer cell lines. To expand the knowledge on the molecular mechanisms through which these gold(III) complexes trigger apoptosis in cancer cells, further studies have been performed using A2780 ovarian cancer cells as reference models. For comparative purposes, parallel studies were carried out on the gold(III) complex AuL12 (dibromo(ethylsarcosinedithiocarbamate)gold(III)), whose proapoptotic profile had been earlier characterized in several cancer cell lines. Our results pointed out that all these gold(III) compounds manifest a significant degree of similarity in their cellular and proapoptotic effects; the main observed perturbations consist of potent thioredoxin reductase inhibition, disruption of the cell redox balance, impairment of the mitochondrial membrane potential, and induction of associated metabolic changes. In addition, evidence was gained of the remarkable contribution of ASK1 (apoptosis-signal-regulating kinase-1) and AKT pathways to gold(III)-induced apoptotic signaling. Overall, the observed effects may be traced back to gold(III) reduction and subsequent formation and release of gold(I) species that are able to bind and inhibit several enzymes responsible for the intracellular redox homeostasis, in particular the selenoenzyme thioredoxin reductase.
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5
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Dalla Pozza M, Orvain C, Brustolin L, Pettenuzzo N, Nardon C, Gaiddon C, Fregona D. Gold(III) to Ruthenium(III) Metal Exchange in Dithiocarbamato Complexes Tunes Their Biological Mode of Action for Cytotoxicity in Cancer Cells. Molecules 2021; 26:4073. [PMID: 34279414 PMCID: PMC8271683 DOI: 10.3390/molecules26134073] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/27/2021] [Accepted: 06/29/2021] [Indexed: 12/12/2022] Open
Abstract
Malignant tumors have affected the human being since the pharaoh period, but in the last century the incidence of this disease has increased due to a large number of risk factors, including deleterious lifestyle habits (i.e., smoking) and the higher longevity. Many efforts have been spent in the last decades on achieving an early stage diagnosis of cancer, and more effective cures, leading to a decline in age-standardized cancer mortality rates. In the last years, our research groups have developed new metal-based complexes, with the aim to obtain a better selectivity for cancer cells and less side effects than the clinically established reference drug cisplatin. This work is focused on four novel Au(III) and Ru(III) complexes that share the piperidine dithiocarbamato (pipe-DTC) as the ligand, in a different molar ratio. The compounds [AuCl2(pipeDTC)], [Au(pipeDTC)2]Cl, [Ru(pipeDTC)3] and β-[Ru2(pipeDTC)5] have been synthesized and fully characterized by several chemical analyses. We have then investigated their biological properties in two different cell lines, namely, AGS (gastric adenocarcinoma) and HCT116 (colon carcinomas), showing significant differences among the four compounds. First, the two gold-based compounds and β-[Ru2(pipeDTC)5] display IC50 in the µM range, significantly lower than cisplatin. Second, we showed that [AuCl2(pipeDTC)] and β-[Ru2(pipeDTC)5]Cl drive different molecular mechanisms. The first was able to induce the protein level of the DNA damage response factor p53 and the autophagy protein p62, in contrast to the second that induced the ATF4 protein level, but repressed p62 expression. This study highlights that the biological activity of different complexes bringing the same organic ligand depends on the electronic and structural properties of the metal, which are able to fine tune the biological properties, giving us precious information that can help to design more selective anticancer drugs.
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Affiliation(s)
- Maria Dalla Pozza
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy; (M.D.P.); (L.B.); (N.P.); (C.N.)
| | - Christophe Orvain
- Interface Recherche Fondamentale en Cancérologie, Université de Strasbourg, Inserm UMR_S 1113, 3 av. Molière, 67200 Strasbourg, France;
| | - Leonardo Brustolin
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy; (M.D.P.); (L.B.); (N.P.); (C.N.)
| | - Nicolò Pettenuzzo
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy; (M.D.P.); (L.B.); (N.P.); (C.N.)
| | - Chiara Nardon
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy; (M.D.P.); (L.B.); (N.P.); (C.N.)
| | - Christian Gaiddon
- Interface Recherche Fondamentale en Cancérologie, Université de Strasbourg, Inserm UMR_S 1113, 3 av. Molière, 67200 Strasbourg, France;
| | - Dolores Fregona
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy; (M.D.P.); (L.B.); (N.P.); (C.N.)
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Massai L, Zoppi C, Cirri D, Pratesi A, Messori L. Reactions of Medicinal Gold(III) Compounds With Proteins and Peptides Explored by Electrospray Ionization Mass Spectrometry and Complementary Biophysical Methods. Front Chem 2020; 8:581648. [PMID: 33195070 PMCID: PMC7609534 DOI: 10.3389/fchem.2020.581648] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 09/16/2020] [Indexed: 11/13/2022] Open
Abstract
Electrospray ionization mass spectrometry (ESI MS) is a powerful investigative tool to analyze the reactions of metallodrugs with proteins and peptides and characterize the resulting adducts. Here, we have applied this type of approach to four experimental anticancer gold(III) compounds for which extensive biological and mechanistic data had previously been gathered, namely, Auoxo6, Au2phen, AuL12, and Aubipyc. These gold(III) compounds were reacted with two representative proteins, i.e., human serum albumin (HSA) and human carbonic anhydrase I (hCA I), and with the C-terminal dodecapeptide of thioredoxin reductase. ESI MS analysis allowed us to elucidate the nature of the resulting metal-protein adducts from which the main features of the occurring metallodrug-protein reactions can be inferred. In selected cases, MS data were integrated and supported by independent 1HNMR and UV-Vis absorption measurements to gain an overall description of the occurring processes. From data analysis, it emerges that most of the investigated gold(III) complexes, endowed with an appreciable oxidizing character, undergo quite facile reduction to gold(I); the resulting gold(I) species tightly associate with the above proteins/peptides with a remarkable selectivity for free cysteine residues. In contrast, in the case of the less-oxidizing Aubipyc complex, the gold(III) oxidation state is conserved, and a gold(III) fragment still containing the original ligand is found to be associated with the target proteins. It is notable that the C-terminal dodecapeptide of thioredoxin reductase containing the characteristic -Gly-Cys-Sec-Gly metal-binding motif is able in all cases to trigger gold(III)-to-gold(I) reduction. Our investigation allowed us to identify in detail the nature of the gold fragments that ultimately bind the protein targets and determine the exact binding stoichiometry; some insight on the reaction kinetics was also gained. Notably, a few clear correlations could be established between the structure of the metal complexes and the nature of the resulting protein adducts. The mechanistic implications of these findings are analyzed and thoroughly discussed. Overall, the present results set the stage to better understand the real target biomolecules of these gold compounds and elucidate at the atomic level their interaction modes with proteins and peptides.
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Affiliation(s)
- Lara Massai
- Department of Chemistry, University of Florence, Florence, Italy
| | - Carlotta Zoppi
- Department of Chemistry, University of Florence, Florence, Italy
| | - Damiano Cirri
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Alessandro Pratesi
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Luigi Messori
- Department of Chemistry, University of Florence, Florence, Italy
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7
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Synthesis, characterization and anticancer activity in vitro evaluation of novel dicyanoaurate (I)-based complexes. Life Sci 2020; 251:117635. [PMID: 32272179 DOI: 10.1016/j.lfs.2020.117635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/01/2020] [Accepted: 04/01/2020] [Indexed: 11/23/2022]
Abstract
Molecular structures containing gold, such as auranofin, have been extensively studied in the diagnosis and treatment of many diseases, including cancer treatment. The pharmacological properties of the newly synthesized unique gold-ligand structures have been reported for different cancer cell lines. However, findings on bishydeten-metal salt complexes with gold are rare. In this work, the synthesis of five novel cyanide-bridged coordination compounds having the closed formulae [Ni(bishydeten)][Au(CN)2]2 (1), [Cu(bishydeten)][Au(CN)2]2 (2), [Zn(bishydeten)2Au3(CN)4][Au2(CN)3] (3), [Cd(bishydeten)0,5]2[Au(CN)2]4.2H2O (4), and [Cd(bishydeten)2][Au(CN)2]2 (5) (where bisyhdeten = N,N-bis(2-hydroxyethyl)ethylene diamine), and their characterization by elemental, infrared, ESI-MS, X-ray (for 2) and thermic measurement methods were performed. Complexes 1 and 3 are thermally more stable than the other three complexes. For these, pharmacological adequacies were also tested. The nucleic acid and protein binding affinities of the Au (I) compounds were also estimated by spectroscopic and electrophoretic techniques. Au (I) complexes were identified as strong chemotherapeutic with mild cytotoxicity, and they demonstrated a dose-dependent inhibition on the growth of cancer cells with IC50 at 0.11 to 0.47 μM. Investigation of mechanisms of action on cells revealed that Au (I) compounds managed to inhibit cell migration and led to a decrease in cytoskeletal proteins such as CK7 and CK20. However, Au (I) compounds failed to inhibit DNA topoisomerase I. Overall, and we suggest that potent antiproliferative activity, mild cytotoxicity, good solubility, and micromolar dosage of Au (I) compounds containing bisyhdeten-metal derivatives render them the potential focus of further studies as chemotherapeutic agents.
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Radisavljević S, Đeković Kesić A, Ćoćić D, Puchta R, Senft L, Milutinović M, Milivojević N, Petrović B. Studies of the stability, nucleophilic substitution reactions, DNA/BSA interactions, cytotoxic activity, DFT and molecular docking of some tetra- and penta-coordinated gold(iii) complexes. NEW J CHEM 2020. [DOI: 10.1039/d0nj02037k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The stability in water and at pH = 7.2, substitution reactions with Tu, 5’-GMP, GSH and l-Met, DNA/BSA interactions, cytotoxicity, DFT and molecular docking of gold(iii) complexes with phenanthroline derivatives as inert ligands were studied.
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Affiliation(s)
- Snežana Radisavljević
- University of Kragujevac
- Faculty of Science
- Department of Chemistry
- 34000 Kragujevac
- Serbia
| | - Ana Đeković Kesić
- State University of Novi Pazar
- Department of Chemical-Technological Sciences
- 36200 Novi Pazar
- Serbia
| | - Dušan Ćoćić
- University of Kragujevac
- Faculty of Science
- Department of Chemistry
- 34000 Kragujevac
- Serbia
| | - Ralph Puchta
- Inorganic Chemistry
- Department of Chemistry and Pharmacy
- University of Erlangen-Nuremberg
- Erlangen
- Germany
| | - Laura Senft
- Inorganic Chemistry
- Department of Chemistry and Pharmacy
- University of Erlangen-Nuremberg
- Erlangen
- Germany
| | - Milena Milutinović
- University of Kragujevac, Faculty of Science
- Department of Biology
- 34000 Kragujevac
- Serbia
| | - Nevena Milivojević
- University of Kragujevac, Faculty of Science
- Department of Biology
- 34000 Kragujevac
- Serbia
| | - Biljana Petrović
- University of Kragujevac
- Faculty of Science
- Department of Chemistry
- 34000 Kragujevac
- Serbia
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Pratesi A, Cirri D, Fregona D, Ferraro G, Giorgio A, Merlino A, Messori L. Structural Characterization of a Gold/Serum Albumin Complex. Inorg Chem 2019; 58:10616-10619. [DOI: 10.1021/acs.inorgchem.9b01900] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Alessandro Pratesi
- Laboratory of Metals in Medicine (MetMed), Department of Chemistry “U. Schiff”, University of Florence, via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Damiano Cirri
- Laboratory of Metals in Medicine (MetMed), Department of Chemistry “U. Schiff”, University of Florence, via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Dolores Fregona
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Giarita Ferraro
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia, 80126 Napoli, Italy
| | - Anna Giorgio
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia, 80126 Napoli, Italy
| | - Antonello Merlino
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia, 80126 Napoli, Italy
| | - Luigi Messori
- Laboratory of Metals in Medicine (MetMed), Department of Chemistry “U. Schiff”, University of Florence, via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
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Ferraro G, Giorgio A, Mansour AM, Merlino A. Protein-mediated disproportionation of Au(i): insights from the structures of adducts of Au(iii) compounds bearingN,N-pyridylbenzimidazole derivatives with lysozyme. Dalton Trans 2019; 48:14027-14035. [DOI: 10.1039/c9dt02729g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Structural data of protein/gold adducts suggest protein-mediated reduction of Au(iii) into Au(i) and disproportionation of Au(i) into Au(iii) and Au(0).
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Affiliation(s)
- Giarita Ferraro
- Department of Chemistry “Ugo Schiff”
- University of Florence
- Sesto Fiorentino
- Italy
| | - Anna Giorgio
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario di Monte Sant'Angelo
- Naples
- Italy
| | | | - Antonello Merlino
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario di Monte Sant'Angelo
- Naples
- Italy
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11
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Magherini F, Fiaschi T, Valocchia E, Becatti M, Pratesi A, Marzo T, Massai L, Gabbiani C, Landini I, Nobili S, Mini E, Messori L, Modesti A, Gamberi T. Antiproliferative effects of two gold(I)-N-heterocyclic carbene complexes in A2780 human ovarian cancer cells: a comparative proteomic study. Oncotarget 2018; 9:28042-28068. [PMID: 29963261 PMCID: PMC6021324 DOI: 10.18632/oncotarget.25556] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Accepted: 05/19/2018] [Indexed: 02/07/2023] Open
Abstract
Au(NHC) and Au(NHC)2, i.e. a monocarbene gold(I) complex and the corresponding bis(carbene) complex, are two structurally related compounds, endowed with cytotoxic properties against several cancer cell lines. Herein, we explore the molecular and cellular mechanisms at the basis of their cytotoxicity in A2780 human ovarian cancer cells. Through a comparative proteomic analysis, we demonstrated that the number of modulated proteins is far larger in Au(NHC)2-treated than in Au(NHC)-treated A2780 cells. Both gold compounds mainly affected proteins belonging to the following functional classes: protein synthesis, metabolism, cytoskeleton and stress response and chaperones. Particularly, Au(NHC)2 gave rise to an evident upregulation of several glycolytic enzymes. Moreover, only Au(NHC)2 triggered a net impairment of respiration and a metabolic shift towards glycolysis, suggesting that mitochondria are relevant cellular targets. We also found that both carbenes, similarly to the gold(I) compound auranofin, caused a strong inhibition of the seleno-enzyme thioredoxin reductase (TrxR). In conclusion, we highlighted that coordination of two carbene ligands to the same gold(I) center greatly enhances the antiproliferative effects of the resulting compound in comparison to the monocarbene derivative. Moreover, TrxR inhibition and metabolic impairment seem to play a major role in the Au(NHC)2 cytotoxicity. Overall, these antiproliferative effects were also confirmed on other two human ovarian cancer cell lines (i.e. SKOV3 and IGROV1).
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Affiliation(s)
- Francesca Magherini
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Tania Fiaschi
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Elisa Valocchia
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Matteo Becatti
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Alessandro Pratesi
- Department of Chemistry "Ugo Schiff", University of Florence, Florence, Italy
| | - Tiziano Marzo
- Department of Chemistry "Ugo Schiff", University of Florence, Florence, Italy.,Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Lara Massai
- Department of Chemistry "Ugo Schiff", University of Florence, Florence, Italy
| | - Chiara Gabbiani
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Ida Landini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Stefania Nobili
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Enrico Mini
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Luigi Messori
- Department of Chemistry "Ugo Schiff", University of Florence, Florence, Italy
| | - Alessandra Modesti
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Tania Gamberi
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
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12
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Boscutti G, Nardon C, Marchiò L, Crisma M, Biondi B, Dalzoppo D, Dalla Via L, Formaggio F, Casini A, Fregona D. Anticancer Gold(III) Peptidomimetics: From Synthesis to in vitro and ex vivo Biological Evaluations. ChemMedChem 2018; 13:1131-1145. [PMID: 29570944 DOI: 10.1002/cmdc.201800098] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 03/14/2018] [Indexed: 12/25/2022]
Abstract
Five new AuIII -peptidodithiocarbamato complexes of the type [AuIII Br2 (dtc-AA1 -AA2 -OR] (in which AA1 =N-methylglycine (Sar), l/d-Pro; AA2 =l/d-Ala, α-aminoisobutyric acid (Aib); R=OtBu, triethylene glycol methyl ether), differing with regard to the amino acid sequence and/or the chiral amino acid configuration, were designed to enhance tumor selectivity and bioavailability. The gold(III)-based moiety was functionalized to exploit the targeting properties of the peptidomimetic ligand toward two peptide transporters (namely PEPT1 and PEPT2), which are upregulated in several tumor cells. The compounds were synthesized and fully characterized, mainly by means of elemental analysis, one- and two-dimensional NMR spectroscopy, FT-IR, and UV/Vis spectrophotometry. The crystal structures of three compounds were also solved by X-ray diffraction. In vitro cytotoxicity studies using a panel of human tumor cell lines (A549 [non-small-cell lung carcinoma], MCF-7 [breast cancer], A2780 [ovarian carcinoma], H1975 [non-small-cell lung carcinoma], H460 [large-cell lung carcinoma], and A431 [human epidermoid carcinoma]) showed the dtc-Pro-Aib-OtBu derivative to be very effective, with GI50 values much lower than those of cisplatin. This complex was thus selected for evaluating stability under physiological conditions and possible interactions with serum albumin, as well in PARP-1 enzyme inhibition assays and preliminary ex vivo toxicity experiments on healthy rat tissues.
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Affiliation(s)
- Giulia Boscutti
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Chiara Nardon
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Luciano Marchiò
- SCVSA Department, University of Parma, Parco Area delle Scienze 17/A, 43121, Parma, Italy
| | - Marco Crisma
- Institute of Biomolecular Chemistry, Padova Unit, CNR, via Marzolo 1, 35131, Padova, Italy
| | - Barbara Biondi
- Institute of Biomolecular Chemistry, Padova Unit, CNR, via Marzolo 1, 35131, Padova, Italy
| | - Daniele Dalzoppo
- Department of Pharmaceutical Sciences, University of Padova, via Marzolo 5, 35131, Padova, Italy
| | - Lisa Dalla Via
- Department of Pharmaceutical Sciences, University of Padova, via Marzolo 5, 35131, Padova, Italy
| | - Fernando Formaggio
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy.,Institute of Biomolecular Chemistry, Padova Unit, CNR, via Marzolo 1, 35131, Padova, Italy
| | - Angela Casini
- School of Chemistry, Cardiff University, Main Building, Park Place, CF10 3AT, Cardiff, UK.,Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 GV, Groningen, The Netherlands
| | - Dolores Fregona
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
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13
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Radisavljević S, Bratsos I, Scheurer A, Korzekwa J, Masnikosa R, Tot A, Gligorijević N, Radulović S, Rilak Simović A. New gold pincer-type complexes: synthesis, characterization, DNA binding studies and cytotoxicity. Dalton Trans 2018; 47:13696-13712. [DOI: 10.1039/c8dt02903b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The complex [Au(H2LtBu)Cl]Cl2(1) induced perturbations of the cell cycle and led to apoptosis in human melanoma A375 cells.
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Affiliation(s)
| | - Ioannis Bratsos
- I.N.N
- Department of Physical Chemistry
- NCSR “Demokritos”
- Athens
- Greece
| | - Andreas Scheurer
- Inorganic Chemistry
- Department of Chemistry and Pharmacy
- University of Erlangen-Nürnberg
- Erlangen
- Germany
| | - Jana Korzekwa
- Inorganic Chemistry
- Department of Chemistry and Pharmacy
- University of Erlangen-Nürnberg
- Erlangen
- Germany
| | - Romana Masnikosa
- Department of Physical Chemistry
- Vinča Institute of Nuclear Sciences
- University of Belgrade
- 11000 Belgrade
- Serbia
| | - Aleksandar Tot
- University of Novi Sad
- Faculty of Sciences
- Department of Chemistry
- Biochemistry and Environmental Protection
- 21000 Novi Sad
| | | | - Siniša Radulović
- Institute for Oncology and Radiology of Serbia
- 11000 Belgrade
- Serbia
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Mahato M, Mukherji S, Van Hecke K, Harms K, Ghosh A, Nayek HP. Mononuclear homoleptic organotin(IV) dithiocarbamates: Syntheses, structures and antimicrobial activities. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.10.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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